ultrasound (Science: investigation) A type of imaging technique which uses high-frequency sound waves. This is highly operator-dependent and is thought to be useful in diagnosis but not particularly accurate in the assessment of tumour response. For the latter, CT or MR imaging are more accurate...
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..
If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..
Mutations can also influence the phenotype of an organism. This tutorial looks at the effects of chromosomal mutations, ..
Adaptation, in biology and ecology, refers to the process or trait through which organisms or the populations in a habit..
Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..
Life, as we know it today, is presumed to have started in the sea and many of them were likely eukaryotic animal-like or..
